The MTA posted a notice on their website saying the severe heat can impact subway and train signals and overhead power lines. The agency also says escalator and elevator service may be reduced in order to save energy.

The MTA said in the notice that subways may go a little slower during peak hours in order to help reduce power consumption. The agency also cautioned that Metro-North’s New Haven Line is particularly susceptible to slow speed orders because it is powered by overhead wires which droop in the heat.

The agency cautions commuters to plan on taking a little extra time to get to their destinations.

Below are some more tips to help you keep cool when the temperatures heat up:

Stay indoors in air conditioning as much as possible.

If you do go outside, stay in the shade.

If your home is not air-conditioned, spend at least two hours daily at an air-conditioned mall, library or other public place.

Wear sunscreen outside along with loose-fitting, light-colored clothes that cover as much skin as possible.

Drink water regularly even if you are not thirsty. Limit alcohol and sugary drinks which speeds dehydration.

Never leave children or pets alone in the car.

Avoid exertion during the hottest part of the day.

Take a cool shower or bath.

Make sure to leave plenty of water for your pets.

Be a good neighbor, check on elderly and people with disabilities in your community who may need assistance keeping cool.

Additionally, residents should contact their local and/or county offices of emergency management regarding any open air-conditioned senior centers or cooling stations.